US Anchor SD1424F Drive Anchor, Steel, Zinc Plated Finish, 1/4" Diameter, 2-1/2" Length (Pack Of 100)

Sleeve Anchors provide a large bearing surface, you can count on these anchors for secure, permanent holding power. All provide a threaded stud when installed. Use them to hold steel, aluminum, wood panels, doors, framing, and shelving to concrete. To install, drive the anchor through the fixture and into a drilled hole, then tighten the bolt to expand the end. Anchors meet GSA specifications. Ultimate tension and shear strength are based on tests in 4,000 psi concrete. Not removable.